RUSSIA has been accused of assaulting Ukrainian defenders at the Mariupol steelworks with 2,500C deadly phosphorus bombs.
Hundreds of soldiers remain in hiding at the bombed-out site as they stage a desperate final stand against Putin’s troops in the besieged city.
Horror aerial footage shows a Russian missile detonating in midair above the devastated plant.
Burning explosives can be seen raining down on the bombed site.
The relentless bursts of fire – clusters of incendiary munitions – then explode when they hit the ground and buildings.
Ukrainian officials claim the clip shows Russian forces dropping 9M22S incendiary and phosphorus bombs at steel mills – which burn at up to 2,500C.
White phosphorus causes injury and death when it burns deep into tissue, when it is inhaled as smoke, and when it is ingested.
Mykhailo Fedorov, Deputy Prime Minister of Ukraine, tweeted: “Video evidence of possible use of phosphorus bombs against supporters of Mariupol.
“Azovstal represents not just Ukraine, but all of Europe.
“The bravest of humanity. Never forgive, never forget.”
Russia has previously been accused of using deadly phosphorus bombs in Ukraine after footage emerged showing what was supposed to be white phosphorus burning fiercely on the ground in the eastern city of Kramatorsk.
Separate images showed it apparently glowing in the sky above Kiev.
Civilians sheltering at the steel mill were evacuated this month, with hundreds of soldiers remaining in the network of tunnels below the site.
Earlier this month, shocking footage showed the moment large explosions hit the plant as Russian forces blasted the site with thermobaric missiles.
This comes after Kalush Orchestra leader Oleg Psiuk implored people to help free hundreds of Ukrainian fighters trapped at the steel mill during the Eurovision song contest.
The Azov battalion, which is among the last 1,000 defenders of the plant, sent its thanks from the maze of tunnels under the plant.
They posted on Telegram: “Thanks to the Kalush Orchestra for their support! Glory to Ukraine!”
But in a chilling response, Russian troops wrote “Kalush, as you asked”, “help Mariupol” and “help Azovstal right now” on a bomb.
Haunting images posted on pro-Kremlin Telegram channels show the hashtag Eurovision2022 written on a bomb, as well as references to Kalush Orchestra, Ukraine’s victorious band.